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CO2-Lasertonsillotomy Under Local Anesthesia in Adults
Published on: November 6, 2019
Respiratory complications after diode-laser-assisted tonsillotomy
Miloš Fischer1, Iris-Susanne Horn, Mirja Quante
1Department of ORL-HNS, University Hospital Leipzig, Liebigstr. 10-14, 04103, Leipzig, Germany, milos.fischer@medizin.uni-leipzig.de.
Insights
Children undergoing diode-laser tonsillotomy need careful monitoring, especially those with sleep-disordered breathing or comorbidities. Lowering laser power can reduce swelling and complications, improving patient outcomes.
Area of Science:
- Otolaryngology
- Pediatric Surgery
- Anesthesiology
Background:
- Adenotonsillectomy requires extended monitoring for pediatric patients with risk factors like comorbidities or severe obstructive sleep apnea syndrome (OSAS).
- Specific recommendations for postoperative monitoring after diode-laser-assisted tonsillotomy are lacking.
- Diode-laser-assisted tonsillotomy is an alternative surgical technique for tonsil removal.
Purpose of the Study:
- To evaluate postoperative respiratory complications following diode-laser-assisted tonsillotomy in children.
- To identify risk factors associated with respiratory complications and oropharyngeal edema.
- To establish recommendations for postoperative care and laser usage in this procedure.
Main Methods:
- Retrospective chart review of 96 children who underwent diode-laser-assisted tonsillotomy between July 2011 and June 2013.
- Data collected included patient history (general, sleep apnea), diode-laser power (λ = 940 nm), anesthesia parameters, and postoperative outcomes (respiratory complications, healing).
- Statistical analysis was performed to identify risk factors and significant associations (p-values, odds ratios, confidence intervals).
Main Results:
- Respiratory complications occurred in 16 of 96 patients, necessitating adjustments in post-anesthesia care.
- Risk factors for respiratory complications included younger age (3.1 vs. 4.0 years), nocturnal apneas (OR = 5.00), and comorbidities (OR = 4.84).
- Diode-laser power exceeding 13 W was a risk factor for postoperative oropharyngeal edema (OR = 3.45).
Conclusions:
- Postoperative respiratory complications in children with sleep-disordered breathing (SDB) after diode-laser-assisted tonsillotomy should not be underestimated.
- Children with SDB, comorbidities, or those younger than 3 years are considered 'at risk'.
- Moderate to severe OSAS patients require PICU referral; reduced diode-laser power (<13 W) is recommended to minimize oropharyngeal edema.
Abstract:
Children with certain risk factors, such as comorbidities or severe obstructive sleep apnea syndrome (OSAS) are known to require extended postoperative monitoring after adenotonsillectomy. However, there are no recommendations available for diode-laser-assisted tonsillotomy. A retrospective chart review of 96 children who underwent diode-laser-assisted tonsillotomy (07/2011-06/2013) was performed. Data for general and sleep apnea history, power of the applied diode-laser (λ = 940 nm), anesthesia parameters, the presence of postoperative respiratory complications and postoperative healing were evaluated. After initially uncomplicated diode-laser-assisted tonsillotomy, an adjustment of post-anesthesia care was necessary in 16 of 96 patients due to respiratory failure. Respiratory complications were more frequent in younger children (3.1 vs. 4.0 years, p = 0.049, 95 % CI -1.7952 to -0.0048) and in children who suffered from nocturnal apneas (OR = 5.00, p < 0.01, 95 % CI 1.4780-16.9152) or who suffered from relevant comorbidities (OR = 4.84, p < 0.01, 95 % CI 1.5202-15.4091). Moreover, a diode-laser power higher than 13 W could be identified as a risk factor for the occurrence of a postoperative oropharyngeal edema (OR = 3.45, p < 0.01, 95 % CI 1.3924-8.5602). Postoperative respiratory complications should not be underestimated in children with sleep-disordered breathing (SDB). Therefore, children with SDB, children with comorbidities or children younger than 3 years should be considered "at risk" and children with confirmed moderate to severe OSAS should be referred to a PICU following diode-laser-assisted tonsillotomy. We recommend a reduced diode-laser power (<13 W) to reduce oropharyngeal edema.
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